Method for building temperature regulation, emergency heating and settlement monitoring based on wax pool foundation

Abstract

The application discloses a kind of wax pool foundation-based building temperature adjustment, emergency heating and subsidence monitoring method, belong to building safety environmental protection energy saving field.The method is driven by roof solar photovoltaic panel in the ground wax heat storage pool, while realizing the comprehensive function of building day and night temperature regulation, cold wave emergency heating and ground subsidence monitoring.During the day, solar energy is used to heat the ground wax, which changes its phase and stores heat, and releases heat at night to ensure stable room temperature and reduce dependence on battery energy storage.In cold weather, the wax can be used as fuel for emergency heating to ensure that the indoor temperature remains at a livable temperature in extreme weather.In addition, the system monitors the wax level changes to dynamically monitor and warn the ground subsidence, ensuring the safety of the building.The application has the advantages of low cost, environmental protection, economy and strong adaptability, and is suitable for widespread use in rural single-story buildings.

Description

Technical Field

[0001] This invention belongs to the field of building safety, environmental protection and energy conservation. More specifically, it relates to a system that utilizes a "solar energy-wax pool foundation" to directly drive the foundation heat storage through solar photovoltaic power generation, thereby realizing the functions of day and night temperature regulation, emergency heating during cold waves and foundation settlement monitoring of the building. It is a comprehensive solution for safe and livable single-story buildings. Background Technology

[0002] In rural areas of my country, single-story buildings (such as houses and livestock sheds) have become the most common building form due to their economic efficiency and practicality. However, the significant temperature difference between indoors and outdoors, especially in winter, with its diurnal temperature variations and extreme cold waves, severely impacts residents' comfort and even threatens livestock health. Simultaneously, foundation subsidence is a frequent problem. Factors such as unstable soil, fluctuating groundwater levels, uneven loads, design flaws, and natural disasters can cause foundation settlement, potentially damaging building structures and endangering life and property. Therefore, finding safe, economical, and environmentally friendly methods to stabilize indoor temperatures, ensure emergency heating during extreme cold weather, and detect potential foundation subsidence early have become pressing challenges for single-story buildings in rural areas.

[0003] Current temperature control methods mostly rely on battery energy storage or fuel heating. Table 1 shows the advantages and disadvantages of the main methods, all of which have many limitations. Battery energy storage systems are costly and polluting, making them unsuitable for widespread application in rural areas; traditional fuel heating methods have high carbon emissions, which is detrimental to environmental protection. Although solar collectors can utilize solar energy to some extent, the equipment is complex, costly, and difficult to provide continuous heating at night. It should be noted that combining solar energy with conventional phase change thermal storage systems requires high material performance and control precision, making the design and installation complex, and it cannot meet the temperature maintenance needs of buildings without a heat source for extended periods.

[0004] Table 1. Characteristics of Main Temperature Control Methods in Rural Buildings

[0005]

[0006] Common methods for monitoring foundation settlement include manual observation, leveling instrument monitoring, real-time GPS monitoring, and tiltmeter monitoring. Manual observation and traditional instruments suffer from data delays, making it impossible to provide real-time feedback on settlement, and their limited monitoring point coverage makes it difficult to comprehensively reflect foundation changes. High-precision equipment (such as GPS systems) is expensive, limiting its widespread application in rural areas.

[0007] To address the above-mentioned technical limitations, this invention proposes a method for building temperature regulation, emergency heating, and settlement monitoring based on a wax pool foundation. Its main innovations are as follows:

[0008] (1) Control of diurnal temperature range

[0009] By generating electricity through rooftop photovoltaics, the wax pool in the foundation is heated during the day, and the paraffin wax changes from a solid to a liquid state to store heat. At night, the paraffin wax cools back to a solid state and releases heat, ensuring a stable room temperature and avoiding the use of expensive and polluting conventional battery energy storage methods.

[0010] (2) Emergency heating during cold waves

[0011] When encountering prolonged cold waves, the ground-mounted paraffin thermal storage tank is converted into a fuel supply tank, providing emergency heating to the rooms through a paraffin combustion furnace, and has the ability to maintain indoor temperature even when solar energy is absent for more than several dozen days.

[0012] (3) Foundation settlement monitoring

[0013] By monitoring the liquid level changes at characteristic locations of the foundation wax pool in real time and establishing a historical database, dynamic monitoring of subsidence and tilting can be achieved, early warning of potential foundation subsidence hazards can be provided, and building safety can be ensured.

[0014] In summary, this invention, based on low-cost wax pool foundations and renewable solar energy, provides a comprehensive solution for day and night temperature regulation, emergency heating, and subsidence monitoring in single-story buildings. It has advantages such as easy installation, environmental friendliness, economy, and strong adaptability, making it suitable for widespread application in rural areas. Summary of the Invention

[0015] The purpose of this invention is to provide a system that utilizes a "solar energy-wax pool foundation" to directly drive the paraffin heat storage of the foundation through solar photovoltaic power generation, thereby achieving integrated functions such as day and night temperature regulation, emergency heating during cold waves, and foundation subsidence monitoring for single-story rural buildings.

[0016] The objective of this invention is achieved through the following technical solution:

[0017] The present invention relates to a rural single-story building “solar-wax pool foundation” system, which includes a solar photovoltaic power generation module, a connecting cable and monitoring module, a wax pool foundation module, an emergency heating module and a foundation settlement monitoring module.

[0018] The solar photovoltaic power generation module includes photovoltaic panels, brackets, and cable connectors. One of the core technologies is the calculation method for the optimal area of ​​the photovoltaic panel under multi-field coupling conditions of the "solar-wax pool foundation" system, which is used to efficiently collect solar energy and convert it into electrical energy.

[0019] The connecting cable and monitoring module include a cable, a switch, an overload protector, and a monitoring panel, used for current transmission, monitoring, and power regulation.

[0020] The wax pool foundation module includes a wax pool, support columns, paraffin wax, white oil, heating cables, cover plates, and cable holes. One of the core technologies is the calculation method for the optimal ratio and amount of paraffin wax and white oil under multi-field coupling conditions of the "solar energy-wax pool foundation" system. This method is used to convert electrical energy into thermal energy and achieve day and night thermal balance adaptation and management through the phase change of paraffin wax.

[0021] The emergency heating module includes a temperature sensor, a metal lead pipe, a combustion furnace, a flue, and a packing hole. One of its core technologies is a method for predicting paraffin consumption during non-periodic solar energy absence, which is used for emergency heating and material backfilling during cold waves.

[0022] The foundation settlement monitoring module includes a static pressure sensor, optical fiber, and microcontroller. One of its core technologies is to convert the static pressure data measured in real time at the characteristic location of the wax pool into the geometric principles and calculation methods of the foundation tilt angle, which is used for dynamic monitoring of foundation settlement.

[0023] The aforementioned "solar-wax pool foundation" system provides a comprehensive solution for day and night temperature regulation, emergency heating, and subsidence monitoring of single-story buildings in rural areas, mainly including the following three functions:

[0024] (1) Under normal sunshine conditions, the winter diurnal temperature range regulation of "solar photovoltaic power generation - ground-based paraffin heat storage" was realized.

[0025] This invention utilizes rooftop solar photovoltaic power generation to directly heat a paraffin thermal storage tank in the foundation. Through a solid-liquid phase change between paraffin and paraffin oil, heat is stored and released. During the day, paraffin absorbs solar energy and transforms from a solid to a liquid paraffin oil, storing heat and preventing excessively high indoor temperatures. At night, after the sun sets, the paraffin oil gradually cools back to solid paraffin, releasing heat and maintaining a relatively stable indoor temperature. This invention effectively avoids the use of expensive and polluting energy storage batteries and does not rely on the underdeveloped power grid systems in rural areas.

[0026] (2) When a prolonged cold wave occurs, emergency heating is provided using paraffin wax stored in the wax pool foundation as fuel.

[0027] When encountering prolonged periods of overcast skies, heavy rain, snow, or other extreme cold weather, solar power generation becomes ineffective, and the heat stored in the paraffin foundation is quickly depleted. This invention temporarily converts the paraffin foundation heat storage tank into a fuel supply tank, using a paraffin combustion furnace installed on the foundation to provide emergency heating to the rooms, ensuring that the indoor temperature remains at a suitable and stable level. Because the volume of paraffin stored in the tank is large enough to guarantee an emergency fuel supply throughout the winter, the paraffin consumed in the previous winter only needs to be replenished before each winter for reuse.

[0028] (3) Real-time monitoring of foundation settlement and tilt dynamic data throughout the entire life cycle ensures timely protection of building safety and the safety of life and property.

[0029] A database of paraffin oil levels in the foundation is constructed, and hydrostatic sensors are used to automatically monitor paraffin oil levels at different characteristic locations. Based on the principle of adaptive leveling, the risk of foundation subsidence is identified by analyzing real-time data changes in the paraffin oil level. The tilt angle at which foundation subsidence occurs is quantitatively calculated using geometric relationships. If the tilt angle exceeds the safe tilt angle, an early warning is issued to the user, enabling them to detect potential foundation subsidence hazards early, propose preventative measures, and ensure the safety of buildings and people.

[0030] As can be seen from the technical solution provided by the present invention, the "solar energy-wax pool foundation" system provided by the present invention can effectively realize the day and night temperature regulation and emergency heating functions of rural single-story buildings, while providing dynamic settlement monitoring data support for the entire life cycle to ensure building safety. Attached Figure Description

[0031] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0032] Figure 1 This is an overview of the solar-wax pool foundation structure in an embodiment of the present invention;

[0033] Figure 2 This is a schematic diagram of the foundation structure of the wax pool in an embodiment of the present invention;

[0034] Figure 3 This is a schematic diagram of the day-night temperature control of paraffin phase transition in an embodiment of the present invention;

[0035] Figure 4 This is a schematic diagram of foundation settlement data analysis in an embodiment of the present invention.

[0036] In the diagram: 1—Solar photovoltaic panel; 2—Wax pool foundation; 3—Wax pool bottom plate; 4—Heating cable; 5—Paraffin oil; 6—Floor; 7—Paraffin melting and heat storage; 8—Paraffin solidification and heat release. Detailed Implementation

[0037] To better understand this invention, a clear and complete description of its embodiments is provided below, along with specific implementation details in conjunction with the accompanying drawings. Contents not described in detail in these embodiments are prior art well-known to those skilled in the art.

[0038] Example 1: Installation and Usage Method of Solar-Wax Pool Ground-Based Thermal Storage System

[0039] 1. Installation method of solar photovoltaic power generation module

[0040] (1) Install solar photovoltaic panels on the roof of the building, use brackets to ensure the stability of the photovoltaic panels, and keep the photovoltaic panels at the optimal tilt angle to maximize the collection of solar energy.

[0041] (2) The photovoltaic panels are connected to the wax pool foundation module via cables to provide the required electrical energy.

[0042] (3) Calculation method for the optimal area of ​​photovoltaic panels under multi-field coupling conditions of the "solar-wax pool foundation" system

[0043] The overall heat transfer coefficient of the walls and roof is:

[0044] (1)

[0045] In the formula, The total heat transfer coefficient of the walls and roof is expressed in W / (m²). 2 ·℃); , These are the indoor and outdoor convective heat transfer coefficients, respectively, in W / (m²). 2 ·℃); , The thermal conductivity of the walls and roof, and the insulation layer, respectively, is W / (m·℃). , These represent the average thickness of the wall and roof materials, and the insulation layer material, respectively, in meters (m).

[0046] The total heat dissipation area of ​​the building surface is:

[0047] (2)

[0048] In the formula, The total surface area of ​​the building, in meters. 2 ; , , , , These represent the areas of the east, south, west, and north walls and the roof, in m². 2 .

[0049] The daytime heat dissipation of a house during a 24-hour cycle is:

[0050] (3)

[0051] In the formula, J represents the amount of heat dissipated by the house during the day. The average temperature that needs to be maintained indoors, in °C; The average outdoor temperature during the day, in °C; The time (s) that corresponds to the average outdoor temperature during the daytime in a diurnal cycle.

[0052] Similarly, the heat dissipation of a house during a nighttime cycle can be calculated as follows:

[0053] (4)

[0054] In the formula, The average outdoor temperature at night, in °C; The time (s) that corresponds to the average outdoor temperature at night for one day-night cycle.

[0055] To maintain a relatively stable target indoor temperature during the day and night, the total heat dissipation of the house under normal circumstances needs to be supplemented by the heat stored in the paraffin wax in the foundation. This heat storage in the paraffin wax originates from the electrical energy generated by solar photovoltaic panels. Therefore, the total solar energy required for the paraffin wax pool to receive over one day and night can be determined as follows:

[0056] (5)

[0057] In the formula, The amount of solar energy required to maintain the temperature of the wax pool for one day and night, J; The efficiency of heat transfer from paraffin to the room is dimensionless.

[0058] According to the principle of energy conservation, the minimum area required for the solar photovoltaic panel is:

[0059] (6)

[0060] In the formula, The area of ​​the solar panel is m. 2 ; The power generated by photovoltaic panels in the target area, in W / m 2 ; The effective power generation time of a photovoltaic panel is measured in seconds (s) over a 24-hour cycle. The efficiency of solar energy transfer to paraffin wax is dimensionless.

[0061] 2. Installation method of wax pool foundation module

[0062] (1) A wax pool is installed below the building foundation. The wax pool is made of corrosion-resistant material and filled with a certain proportion of solid paraffin wax and liquid white oil. Support columns are installed inside the pool to ensure the structural stability of the wax pool.

[0063] (2) A heating cable is installed at the bottom of the wax pool to heat the paraffin wax through the Joule heat generated by the current. When there is sufficient sunshine during the day, the electrical energy collected by the photovoltaic panel is transmitted to the wax pool and converted into heat energy through the heating cable, so that the paraffin oil changes from solid to liquid and stores heat.

[0064] (3) At night, paraffin gradually cools into a solid state, releasing the stored heat, thereby regulating and maintaining a suitable indoor temperature.

[0065] (4) Calculation method for the optimal ratio and dosage of paraffin wax and white oil under multi-field coupling conditions of the "solar-wax pool foundation" system

[0066] Since the latent heat of phase change of paraffin is about 100 times its specific heat, and we ignore the effect of temperature changes on heat storage, the heat dissipation of the house at night should be equal to the heat stored in the paraffin during the day. Based on this heat balance, the required mass of paraffin can be calculated as follows:

[0067] (7)

[0068] In the formula, The mass of paraffin wax is expressed in kg. The latent heat of phase transition of paraffin is expressed in J / kg.

[0069] By converting the density, the volume of paraffin wax can be obtained as follows:

[0070] (8)

[0071] In the formula, The volume of the paraffin wax is in m³. The density of paraffin is kg / m³.

[0072] Because pure paraffin generally has a high melting point, when it reaches its melting point and undergoes a phase change to store heat, it may cause excessively high indoor temperatures, affecting living comfort. Therefore, in this invention, by adding white oil (a relatively simple blank oil obtained from crude oil refining, also known as "mineral oil") with good miscibility to paraffin, a softer paraffin oil is formed. By adjusting the ratio of paraffin to white oil, the melting point of the paraffin oil is controlled to be slightly higher than the comfortable indoor temperature. The target melting point of the paraffin oil can be determined based on the indoor temperature and the heat transfer characteristics of the floor.

[0073] (9)

[0074] In the formula, The target melting point for paraffin oil is ℃; , The convective heat transfer coefficients, in W / (m²), are respectively between the wax pool and the lower surface of the floor, and between the indoor airflow and the upper surface of the floor. 2 ·℃); The thickness of the floor is in meters (m). The thermal conductivity of the floor is W / (m·℃). The area of ​​the floor is m 2 .

[0075] Assuming the mass ratio of white oil to paraffin is... The change in the melting point of paraffin oil can be approximated by the following empirical formula:

[0076] (10)

[0077] In the formula, The melting point of pure paraffin is ℃; These are constants related to the properties of paraffin and white oil, determined empirically or experimentally, at ℃; The mass ratio of oil to paraffin is dimensionless.

[0078] By combining equations (7), (9), and (10), the required mass of white oil can be obtained.

[0079] (11)

[0080] Substituting the density of the white oil into the formula, the required volume of white oil can be obtained as follows:

[0081] (12)

[0082] In the formula, Let the volume of the white oil be m³; ρ is the density of white oil, kg / m³.

[0083] 3. How to set up an emergency heating module

[0084] (1) When a prolonged cold wave occurs and the solar photovoltaic panels generate insufficient power, the wax pool is connected to the combustion furnace through a metal lead pipe for emergency heating. The fuel for the combustion furnace is paraffin oil from the foundation. After combustion, the exhaust gas is discharged outdoors through a flue to ensure the safety of indoor air.

[0085] (2) The heat provided by the burning of paraffin oil can maintain the room temperature for a long time, avoiding the building environment from becoming too cold due to low temperature weather.

[0086] (3) Calculation method for optimal consumption of paraffin oil during non-periodic solar energy absence

[0087] When a prolonged cold snap occurs and solar energy is unavailable throughout the day, the room's heat loss over a 24-hour period is:

[0088] (13)

[0089] Therefore, based on the principle of heat balance, the mass and volume of paraffin oil required for combustion in the furnace for one day and night are as follows:

[0090] (14)

[0091] (15)

[0092] In the formula, The mass of paraffin oil required for combustion in one 24-hour period, expressed in kg; Heat of combustion of paraffin oil, J / kg; The volume of paraffin oil required to burn for one day and night, in J / kg; ρ is the density of paraffin oil, in kg / m³.

[0093] 4. Installation and monitoring methods of foundation settlement monitoring modules

[0094] (1) Static pressure sensors are installed at four right-angled positions at the bottom of the wax pool. The static pressure sensors are connected to the microcontroller via optical fiber to record the changes in static pressure at the bottom of the wax pool and the level of paraffin oil in real time.

[0095] (2) When foundation subsidence occurs, the paraffin liquid level will change, and the monitoring system can detect and record this data in real time. By establishing a dynamic liquid level change database, the liquid level change data is analyzed horizontally and vertically to determine whether there is a risk of foundation subsidence, and early warning information is issued according to the severity.

[0096] (3) Geometric principles and calculation methods for converting static pressure data from the wax pool into foundation inclination angle

[0097] The average inclination angles of the foundation along the east-west and north-south axes are as follows:

[0098] (16)

[0099] (17)

[0100] In the formula, , The average tilt angle of the foundation along the east-west and north-south axes is dimensionless. The acceleration due to gravity is m / s². 2 ; , , respectively, are the lengths of the east-west and north-south central axes, in meters; , , , The values ​​are the static pressures of paraffin oil at the bottom of the wax pool in real time, measured in Pa, located at the northeast, southeast, southwest, and northwest corners.

[0101] The overall tilt angle of the foundation can be expressed as follows:

[0102] (18)

[0103] In the formula, The total tilt angle of the foundation is dimensionless.

[0104] Example 2: Operation and Maintenance of Solar-Wax Pool System

[0105] 1. Methods for controlling diurnal temperature variation

[0106] (1) Under normal sunlight conditions, the electrical energy collected by the photovoltaic panels is transmitted to the wax pool through cables, driving the heating cables to heat the paraffin wax. During the day, the paraffin wax absorbs heat and changes from a solid to a liquid state, storing thermal energy. At night, the paraffin wax gradually cools down, releasing the stored heat and maintaining a stable temperature inside the building.

[0107] (2) By setting up an intelligent temperature control system, the heating cable can be kept at an appropriate temperature to avoid overheating and energy waste. For example, depending on the specific room temperature requirements, the solar heating system for the wax pool can be completely shut off in summer, while in spring and autumn, the room temperature can be flexibly adjusted by partially shutting off the photovoltaic panel connection switch.

[0108] 2. Emergency heating methods

[0109] (1) In the event of a cold wave or extreme weather, when photovoltaic power generation is insufficient, the wax pool can be used as a fuel supply pool to provide additional heat by burning paraffin. When the indoor temperature sensor detects that the room temperature is lower than the set threshold, the combustion furnace is ignited by an automatic igniter, and the number of candle wicks lit in the combustion furnace is controlled by the temperature control system to maintain the room temperature within a suitable range.

[0110] (2) Based on estimates, the paraffin oil contained in the wax pool is sufficient to meet the emergency heating needs throughout the winter; therefore, it is not necessary to replenish the wax pool during the winter to cover the paraffin oil consumed for emergency heating. The real-time volume of paraffin oil consumed can be predicted using data monitored by the static pressure sensor in the wax pool. The method is as follows:

[0111] (19)

[0112] In the formula Emergency heating for wax pools The volume of paraffin oil consumed at any given time, m 3 ; , in seconds, represents the time corresponding to the data monitored by the hydrostatic sensor.

[0113] (3) Before winter each year, the wax pool should be inspected and the consumed paraffin oil should be replenished through the packing holes to ensure the continuity and stability of the system. The volume of paraffin oil to be replenished is also calculated according to formula (19), but it is necessary to ensure that the static pressure monitoring data is measured under the condition that the paraffin oil is in a liquid state.

[0114] 3. Foundation Settlement Monitoring and Data Analysis Methods

[0115] (1) Monitor the changes in liquid level through a static pressure sensor, automatically record the paraffin oil level data, and store it in the database.

[0116] (2) Regularly analyze the monitoring data and combine it with historical data to determine the tilt trend of the foundation. When the tilt angle is greater than the critical safe tilt angle allowed by the foundation, the safety alarm mechanism is triggered to promptly send a foundation tilt alarm signal to the user, reminding the user to formulate corresponding preventive measures to avoid building damage and personal safety due to foundation settlement.

[0117] (20)

[0118] In the formula, The critical safe tilt angle of the foundation is dimensionless.

[0119] Example 3: Parameter Examples

[0120] Taking a single-story building in a rural area of ​​northern my country as an example, the main parameters of this invention are illustrated. In this example, the single-story building is 15 m long, 10 m wide, and 5 m high. The typical daytime outdoor temperature in this region during winter is -5 to 5°C; in this example, 0°C is taken as the average daytime outdoor temperature. The nighttime outdoor temperature is -15 to -5°C; in this example, -10°C is taken as the average nighttime outdoor temperature. When a cold wave occurs, there is no sunshine for heating, and the outdoor temperature drops to -25 to -15°C; in this example, -20°C is taken as the average daytime and nighttime outdoor temperature during a cold wave. This invention maintains the indoor temperature in this example at around 25°C by regulating the daytime and nighttime indoor temperature difference. The building walls and the outer surface of the roof are covered with a polyurethane composite insulation layer, typically with a thickness between 0.01 and 0.1 m; in this example, 0.05 m is taken as the insulation layer thickness. Under sunshine conditions in this region, the power of the solar photovoltaic panels is 100 to 150 W / m². 2 In the example, we take 120 W / m 2 This represents the average power output of the solar panels. The paraffin wax used is No. 60 fully refined paraffin wax, and the white oil used is No. 32 refined white oil.

[0121] (1) In the example, , Take 10 W / (m) 2 ·℃) and 20 W / (m 2 ·℃), , Take 0.2 m and 0.05 m respectively. , Taking 0.4 W / (m·℃) and 0.02 W / (m·℃) respectively, the results are calculated according to equation (1). 0.3 W / (m 2 ·℃), calculated according to formula (2) 550 m 2 .

[0122] (2) In the example, Taking 12 h, the result is calculated according to equation (3). 1.8×10 8 J, Taking 12 h, the result is calculated according to equation (4). 2.5×10 8 J.

[0123] (3) In the example, Taking 0.8, the result is obtained according to equation (5). It is 5.4 × 10 8 J.

[0124] (4) In the example, Take 120 W / m 2 , Take 6 hours, Taking 0.75, the result is calculated according to equation (6). It is 276.75 m 2 .

[0125] (5) In the example, Taking 100 kJ / kg, the result is calculated according to equation (7). It is 3.1 t. Take 0.9×10³kg / m³, and calculate according to formula (8). 3.5 m³.

[0126] (6) In the example, , Take 12 W / (m) 2 ·℃) and 18 W / (m 2 ·℃), Take 0.2 m, Taking 2 W / (m·℃), the result is calculated according to equation (9). The temperature is 35°C.

[0127] (7) In the example, the melting point of No. 60 fully refined paraffin wax is 55℃~65℃. In this example, 60℃ is taken as the average melting point of pure paraffin wax. White oil needs to be added to achieve the target melting point of the paraffin oil. Adjusted to 35 ℃. Take 50, and calculate according to formula (10). The value is 0.5, calculated according to equation (11). 1.6 t. Taking 0.9 × 10³ kg / m³, the result is calculated according to formula (12). It is 1.8m 3 .

[0128] In example (8), the result is obtained according to equation (13). It is 6.4×10 8 J. Taking 43000 kJ / kg, the result is calculated according to equation (14). It is 15 kg, calculated according to formula (15). It is 0.017 m 3 .

[0129] (9) In this example, considering that the cumulative cold wave weather throughout the winter is 45 days, the volume of paraffin oil required for emergency heating is 0.8 m³. 3 Therefore, the total volume of paraffin oil that should be stored in the wax pool before winter is 3.5 + 1.8 + 0.8 = 6.1 m³. 3 .

[0130] (10) In the example, Take 9.8 m / s 2 , , , , Taking 265 Pa, 175 Pa, 440 Pa, and 530 Pa respectively, the results are calculated according to equation (16). The value is 0.002, calculated according to equation (17). The value is 0.0018, calculated according to equation (18). It is 0.0027. Taking 0.087, it can be seen from equation (20) that the tilt of the house foundation in the example is still within the safe range.

[0131] (11) In the example, , , , The corresponding values ​​are 352 Pa, 348 Pa, 355 Pa, and 350 Pa. , , , Taking 299 Pa, 280 Pa, 295 Pa, and 282 Pa respectively, the results are obtained according to equation (19). It is 1.1 m 3 .

[0132] The above embodiments are merely exemplary descriptions of the present invention. Those skilled in the art can adjust and improve the implementation methods based on the content of the present invention without departing from the spirit and scope of the invention. The "solar-wax pool foundation" system of the present invention, through the rational utilization of solar energy, realizes temperature control, emergency heating, and subsidence monitoring functions for single-story buildings in rural areas, providing a safe, environmentally friendly, and efficient comprehensive solution for rural areas.

Claims

1. A method for settlement monitoring and media maintenance based on wax pool foundation, characterized in that, Includes the following steps: S1) A wax pool is installed below the building foundation, containing a fusible wax medium; static pressure sensors are placed at the four corners (northeast, southeast, southwest, and northwest) of the bottom of the wax pool to obtain the static pressure at the corresponding locations. , , , ; S2) Under the condition that the wax pool medium is in a liquid state, the static pressure is collected. , , , The foundation inclination angle was calculated based on the geometric dimensions of the bottom of the wax pool, including the average inclination angles along the east-west and north-south directions. , and overall tilt angle Calculate using the following formula: ， ， ， in The density of the wax pool medium in the liquid state. It is the acceleration due to gravity. , These are the lengths of the east-west and north-south central axes at the bottom of the wax pool, respectively. S3) Overall tilt angle With respect to the preset critical safety tilt angle In comparison, when Timely output of subsidence warning; S4) Calculate the volume of wax pool medium consumed based on the change in static pressure over time collected by the static pressure sensor. The volume of the replenishing medium is determined accordingly, and the consumed wax pool medium is replenished through the packing holes of the wax pool.

2. The method according to claim 1, characterized in that: The consumed volume Calculate using the following formula: ， in The static pressure monitoring time is 0, where 0 is the initial time, and the... , , , and , , , All samples were collected under liquid conditions in the wax pool.

3. The method according to claim 1, characterized in that: The wax pool medium is paraffin oil, which is composed of paraffin and miscible white oil.

Images